RESEARCH ON SPEED REGULATION SYSTEM FOR MATRIX CONVERTER FED INDUCTION MOTOR

Junmei Zhao, Zhijie Zhang, Yifeng Ren

School of Computer and Control Engineering, North University of China, 3Xue Yuan Road, Taiyuan, China

This study presents the application of a Matrix Converter (MC) and an active disturbance rejection controller (ADRC) to Direct Torque Control (DTC) system based on an induction motor. Matrix Converter (MC) is applied to Direct Torque Control (DTC) system based on an induction motor in order to reduce power grid harmonic pollution which is caused by AC-DC-AC converter in conventional DTC system. Then a PID controller and an ADR controller are both designed to regulate the speed of the system. Design procedures for ADRC are given in detail. Finally, corresponding results are compared. The simulation results show that the novel DTC system has combined the advantages of both MC and DTC--stable running, strong anti-jamming, good dynamic and static performance.